...con't...One odd thing to get used to: The clear visor's tab to raise/lower is located on the top center of the visor. Just something to get used to. The Sun Shade has a slide located on the top of the helmet, so you can put it in whatever position you want. It also comes down far enough to be out of your line of sight...all the instruments are in the shaded portion when I glance down (on the RG). The sun shade transmits about 50%...not as dark as sunglasses, but dark enough...a tad darker wouldn't hurt, but it was bright today, and I was not squinting. The chin bar, when in the FF position, sits lower than most, and has a bit more room between your mouth and the bar than some helmets I've tried...good if you have a microphone in front of your mouth, as it's out of the way. Also, with the chin bar being low, I don't have to move my head to see the lower gauges or the GPS. The field of view is large top to bottom, and side to side. The helmet is not light...very few Flip Face helmets are. Size Large is 4 lbs 4 3/4 ounces. For comparison, a Nolan XL N-103 weighs 4 lbs 2 5/8 ounces. However, the helmet feels much lighter on your head...it's well balanced, in both FF mode and 3/4 mode. Very little air comes up under the chin bar when down...much, much less than my Nolan N-102 without the chin flap. It's about the same as the Nolan WITH the chin flap installed. This is likely due to the chin bar being lower, plus the design. Noise levels are about the same as my Nolan at speed. Not bad, but there is some wind noise. Turbulence/buffeting is not bad at all, and on the RG, gets less and less the faster you go. But at 65mph, the Shark does not make you a bobble head at all. Moving your head to look back right or left when changing lanes is no problem...the helmet seems pretty aerodynamic, IMO. At 90mph on the RG, the wind is just hitting the top of the shell. The neck roll around the back/sides of the helmet is very comfortable, and seals well. There's a small vent on top, and one on the chin bar. You can tell they're open, but there's not a great deal of air moving around inside the helmet. Of course, if it's that hot, you just flip it into 3/4 mode. The visor seals well, and has useful detents for anti-fogging...raised all the way up, it's in the air stream, so you get a bit of rattle at speeds over 50 mph. At "normal" positions, no rattle and it stays where you put it. I was able to install the HD Boom headset in the helmet, so there is room for clamping it to the bottom left of the helmet with the smaller interior clamp that comes with the HD set. The boom for the mic is out of the way when raising/lowering the chin bar.
All in all, it's a nice helmet, so it's a keeper for me. They are a little pricey, but you can find some deals on Ebay, which is where mine came from. Shark is a French company, and the US distributor has changed recently, from my understanding.